1N/A#!/usr/sbin/dtrace -Zs
1N/A/*
1N/A * js_objnew.d - count JavaScript object creation using DTrace.
1N/A * Written for the JavaScript DTrace provider.
1N/A *
1N/A * $Id: js_objnew.d 63 2007-10-04 04:34:38Z brendan $
1N/A *
1N/A * This traces JavaScript activity from all browsers running on the system
1N/A * with JavaScript provider support.
1N/A *
1N/A * USAGE: js_objnew.d # hit Ctrl-C to end
1N/A *
1N/A * FIELDS:
1N/A * FILE Filename of the JavaScript program
1N/A * CLASS Class of new object
1N/A * COUNT Number of object creations during tracing
1N/A *
1N/A * Filename and class names are printed if available.
1N/A *
1N/A * COPYRIGHT: Copyright (c) 2007 Brendan Gregg.
1N/A *
1N/A * CDDL HEADER START
1N/A *
1N/A * The contents of this file are subject to the terms of the
1N/A * Common Development and Distribution License, Version 1.0 only
1N/A * (the "License"). You may not use this file except in compliance
1N/A * with the License.
1N/A *
1N/A * You can obtain a copy of the license at Docs/cddl1.txt
1N/A * or http://www.opensolaris.org/os/licensing.
1N/A * See the License for the specific language governing permissions
1N/A * and limitations under the License.
1N/A *
1N/A * CDDL HEADER END
1N/A *
1N/A * 09-Sep-2007 Brendan Gregg Created this.
1N/A */
1N/A
1N/A#pragma D option quiet
1N/A
1N/Adtrace:::BEGIN
1N/A{
1N/A printf("Tracing... Hit Ctrl-C to end.\n");
1N/A}
1N/A
1N/Ajavascript*:::object-create-done
1N/A{
1N/A @objs[basename(copyinstr(arg0)), copyinstr(arg1)] = count();
1N/A}
1N/A
1N/Adtrace:::END
1N/A{
1N/A printf(" %-24s %-36s %8s\n", "FILE", "CLASS", "COUNT");
1N/A printa(" %-24.24s %-36s %@8d\n", @objs);
1N/A}